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Finding the Fourth Proportional to 7,186.70, 10,772.76 and 3,892.84

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Solution

The fourth proportional to 7,186.70, 10,772.76 and 3,892.84 is: 5,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.70 : 10,772.76 = 3,892.84 : x
  2. Step 2: Convert to fraction form
    7,186.70/10,772.76 = 3,892.84/x
  3. Step 3: Cross multiply
    7,186.70x = 10,772.76 × 3,892.84
  4. Step 4: Simplify right side
    7,186.70x = 41,936,631.04
  5. Step 5: Solve for x
    x = 41,936,631.04/7,186.70
  6. Step 6: Final answer
    x = 5,835.31

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